shut-in

n.

（因病弱或天气不好而）被关在屋内的人；

adj.

被关在屋内的，诡密的，被围在中间的；

复数：shut-ins

1. I regret to say that Mr. Smith is ill in bed.
   很抱歉，史密斯先生卧病在床。
2. A case of measles kept him in bed.
   他患麻疹而卧病在床。

1. The organization is cloaked in a shroud of secrecy.
   这个组织笼罩着一种诡秘的气氛。
2. I am an introvert and introverts get drawn in.
   我是个内向的人而且内向是天生的。
3. He is introverted, like me.We resemble each other in that respect.
   他是内向的，我们在这方面彼此相似。

Shut-in tools
Plane-strain propagation of a fluid-driven fracture during injection and shut-in: Asymptotics of large toughness
Polymer-free fracturing fluid revives shut-in well
Liquid uptake of gas shales: A workflow to estimate water loss during shut-in periods after fracturing operations
Interpretation of hydraulic fracturing pressure: A comparison of eight methods used to identify shut-in pressure
A Circulating and Shut-in Well-Temperature-Profile Simulator
Interpretation of hydraulic fracturing shut-in curves for tectonic stress measurements
Measurement of instantaneous shut-in pressure in crystalline rock
Replacing Annual Shut-in Well Tests by Analysis of Regular Injection Data: Field-Case Feasibility Study
Shut-In? Impact of Chronic Conditions on Community Participation Restriction among Older Adults.